Example of Mineral acid?
A. Hydrofolric acid
B. Sulphuric Acid
C. Salt
D. None of these
A thing liable to be easily breakable is:
A. breakable
B. ductile
C. brittle
D. None of these
What natural phenomenon creates a rainbow when light passes through?
A. Air currents
B. Ice crystals
C. Water droplets
D. None of these
Stone is a unit of?
A. Length
B. Weight
C. Mass
D. All of these
Who was the inventor of telephone?
A. Graham Bell
B. Michael Faraday
C. John Ibrahim
D. None of these
CRISPR-Cas9 is used for?
A. For changing DNA sequence
B. For not changing DNA sequence
C. Both
D. None of these
Which instrument measures earthquake intensity?
A. seismograph
B. manometer
C. barometer
D. None of these
Soil erosion is caused by?
A. Deforestation
B. Residual
C. Leaching
D. None of these